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نمایش تعداد 1-10 از 221
Influence of preparation methods of microwave, sol–gel, and hydrothermal on structural and optical properties of lanthania nanoparticles
In this work, the nearly pure hexagonal phase of lanthania nanoparticles (NPs) was successfully synthesized using three methods: microwave, sol–gel, and hydrothermal. The samples were characterized using nine techniques including powder X-ray powder...
Synthesis of Nano-Fluorohydroxyapatite Thin Film by Sol-Gel Method
on titanium substrates, were synthesized by sol-gel spin coating method, using calcium nitrate tetrahydrate (Ca(NO3)2.4H2O, phosphorous pentoxide, (P2O5), and ammonium fluoride, (NH4F), to provide calcium precursor, P-precursor and flourine reagent...
Comparison of polyethylene glycol effect on hydroxyapatite morphology produced into different methods: sol–gel and precipitation
of importance of morphology, in the current research nano-sized HA particles were produced using sol–gel and precipitation methods, and to change the morphology, polyethylene glycol (PEG) was used as an organic modifier. The produced samples were characterized...
Comparison of poly-ethylene glycol effect on hydroxyapatite morphology produced into different method : sol-gel and precipitation
of morphology, in the current research nano sized HA particles were produced using sol-gel and precipitation methods and to change the morphology poly-ethylene glycol (PEG) was used as an organic modifier. The produced samples were characterized using X...
synthesis and optical analysis ofZnO and ZnO:Agnanopowders via modified sol-gel method
Zinc oxide and ZnO:Ag nanopowders were synthesized in gelatin media, at different calcination temperature. The obtained powders were characterized using XRD, TEM and UV-vis techniques
Study of structural and optical properties of CexZrl-x02 nanopowders synthesized through a sol-gel method in gelatin medium
In this research, non-toxic CexZrl-x02 nanopowders (x = 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) were synthesized at 600°C calcination temperature by a sol-gel method in a green rout, using gelatin. The starting materials were cerium nitrate, zirconium nitrate...
Synthesis of Cobalt oxide and Cu doped Cobalt Oxide for Biosensor
Metal and metal oxide nanoparticles have, recently, been widely used in the field of electro chemistry where they have found applications in electroanalysis, electrocatalysis and biocatalysis, especially in sensors and ...
Extraction and Determination of an Antidepressant Drug, Fluoxetine in Waste waters by a New Microextraction Technique; Sol-gel in Hollow Fiber Combined with UV-Vis Spectrophotometry
In this research the extraction and measurment of fluoxetine in waste waters were carried out using a novel solid phase microextraction (SPME) technique namely sol-gel in hallow fiber. The sol – gel process involves evolution of inorganic networks...